Just Gets Better

Powerset - Search for Wikipedia articles, also searches for “Factz,” or collections of facts across Wikipedia.

The World Encyclodepia

WikipediaVision - Update every 30 seconds or so, giving you the global locations of the latest anonymous updates, along with the title of the pages being updated.

Up To The Minute

Wikirage - Lists the pages in Wikipedia which are receiving the most edits per unique editor over various periods of time.

Unfit To Print

Fox News Changes Wikipedia To Smear Rivals: Comprehensive List of Changes

WikiSlueth

Wikipedia Scanner - the brainchild of Cal Tech computation and neural-systems graduate student Virgil Griffith -- offers users a searchable database that ties millions of anonymous Wikipedia edits to organizations where those edits apparently originated, by cross-referencing the edits with data on who owns the associated block of internet IP addresses.

I'm Not Dead Yet

List of premature obituaries

Deja Vu

Films with similar themes and release dates

I love Wikipedia

List of unusual deaths